The microRHTemp is TIPTEMP's smallest, battery powered, stand alone humidity and temperature recorder which offers an extended battery life of typically 10 months. This is an all-in-one compact, portable, easy to use device that will measure and record up to 21,845 measurements per channel. The microRHTemp is a major leap forward in both size and performance. Its real-time clock ensures that all data is time and date stamped and the non-volatile solid state memory storage medium provides maximum data security even if the battery becomes discharged. The device can be started and stopped directly from your computer and it's ultra-miniature size allows the user the ability to use the device in the smallest spaces. The microRHTemp makes data retrieval quick and easy. Simply plug it into an empty COM port and our user-friendly software does the rest.